exam Maths Puzzle Numerical Ability

3+y for y=7

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exam Other Question

Write the standard equation for each ellipse and identify the coordinates of the center, foci, vertices, and co-vertices.

{{{ x^2+4y^2+6x-8y=3 }}}

And

{{{ x^2+16y^2-64y=0 How do i sovle this can you give me a good example.